EDIT

package eu.etaxonomy.cdm.remote.vaadin.components;

import java.io.Serializable;

import java.util.ArrayList;

import java.util.Collection;

import java.util.Collections;

import java.util.Comparator;

import org.springframework.context.annotation.Scope;

import com.vaadin.ui.CustomComponent;

import com.vaadin.ui.Tree;

import com.vaadin.ui.Window;

import eu.etaxonomy.cdm.model.common.Language;

import eu.etaxonomy.cdm.model.description.CategoricalData;

import eu.etaxonomy.cdm.model.description.DescriptionElementBase;

import eu.etaxonomy.cdm.model.description.Distribution;

import eu.etaxonomy.cdm.model.description.StateData;

import eu.etaxonomy.cdm.model.description.TextData;

import eu.etaxonomy.cdm.model.taxon.Taxon;

@Scope("request")

public class DetailWindow extends CustomComponent implements Serializable{

	private Collection<DescriptionElementBase> listDescriptions;

	private Taxon taxon;

	public DetailWindow(Taxon taxon, Collection<DescriptionElementBase> listDescriptions) {

		this.taxon = taxon;

		this.listDescriptions = listDescriptions;

	}

	public Window createWindow(){

		Window window = new Window();

		window.setHeight("600px");

		window.setWidth("400px");

		window.setCaption(taxon.getName().getTitleCache());

		window.setContent(constructDescriptionTree(taxon));

		return window;

	}

	private Tree constructDescriptionTree(Taxon taxon){

		Tree tree = new Tree();

		tree.setSizeUndefined();

		String parent = "Descriptive Data";

		tree.setValue(parent);

		initDescriptionTree(tree, listDescriptions, parent);

		return tree;

	}

	private void initDescriptionTree(Tree tree, Collection<DescriptionElementBase>listDescriptions, Object parent) {

		//TODO: sorting List

//		ArrayList<DescriptionElementBase> lDesc = new ArrayList<DescriptionElementBase>(listDescriptions);

//		sort(lDesc);

		for (DescriptionElementBase deb : listDescriptions){

			tree.addItem(deb.getFeature());

			tree.setItemCaption(deb.getFeature(), deb.getFeature().getTitleCache());

			tree.setParent(deb.getFeature(), parent);

			tree.setChildrenAllowed(deb.getFeature(), true);

			if(deb instanceof CategoricalData){

				CategoricalData cd = (CategoricalData) deb;

				if(cd.getStatesOnly().size() <= 1){

					for(StateData st  : cd.getStateData()){

						tree.addItem(st);

						tree.setItemCaption(st, st.getState().getTitleCache());

						tree.setParent(st, deb.getFeature());

						tree.setChildrenAllowed(st, false);

					}

				}else{

					//TODO: implement recursion

				}

			}else if(deb instanceof TextData){

				TextData td = (TextData) deb;

				tree.addItem(td);

				tree.setItemCaption(td, td.getText(Language.GERMAN()));

				tree.setParent(td, deb.getFeature());

				tree.setChildrenAllowed(td, false);

			}else if(deb instanceof Distribution){

				Distribution db = (Distribution) deb;

				tree.addItem(db.toString());

				tree.setParent(db.toString(), deb.getFeature());

				tree.setChildrenAllowed(db.toString(), true);

				tree.addItem(db.getStatus().toString());

				tree.setParent(db.getStatus().toString(), db.toString());

				tree.setChildrenAllowed(db.getStatus().toString(), false);

			}

			tree.expandItemsRecursively(parent);

		}

	}

	private void sort(ArrayList<DescriptionElementBase> lDesc) {

		Collections.sort(lDesc, new Comparator<DescriptionElementBase>() {

			@Override

			public int compare(DescriptionElementBase o1,

					DescriptionElementBase o2) {

			    if (o1.toString() == null && o2.toString() == null) {

			        return 0;

			      }

			      if (o1.toString() == null) {

			        return 1;

			      }

			      if (o2.toString() == null) {

			        return -1;

			      }

			      return o2.toString().compareTo(o2.toString());

			}

		});

	}

}